Gas-regulator



J. H. COOPER.

Gas Regulator.

Patented June 2-2, 1858.

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UNITED STATES PATENT OFFICE.

JNO. H. COOPER, OF PHILADELPHIA, PENNSYLVANIA.

GAS-REGULATOR.

Specification of Letters Patent No. 20,625, dated June 22, 1858 To all whom it may concern:

Be it known that I, JOHN H. COOPER, of the city of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Regulators; and I do hereby declare the following to be a. full clear, and exact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to improvements in that class of gas-regulators in which an inverted cup loaded with weight, reservoir for fluid and valve are used, and consists,- firstly, in guiding the inverted cup by an independent arm, jointed to the external casing and to the cup in such a manner as to allow the latter the greatest freedom of action in its vertical movements; secondly, in providing a receptacle for retaining the fluid, which through inadvertence may be spilled from the reservoir and for checking the direct flow of gas as it passes to the cup; and thirdly, in arranging the inlet and outlet passages for the gas nearly on the same level.

In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation.

Referring to the drawing which forms part of thls specification, Figure 1, represents a vertical central section of my improved gas regulator. Fig. 2, a plan of the same with the lid and seat for weights removed to show the interior.

A represents the external casing or body of the instrument, consisting of a projecting flange a a, between which and the flange 6 Z) is contained the fluid r r into which dips the rim of the inverted cup G, the inner flange y f forming, with the flange b b, the receptac e g g for retaining the fluid should a portion of the same be accidentally spilled over the flange Z) Z).

Communicating with the interior of the casing A and forming a part of the same, is a hollow projection or exit pip-e B. This exit pipe terminates in a screw nozzle C to which the pipe supplying the burners is attached. A thumb screw K is tapped into the depressed portion of the exit pipe B for facilitating the removal of water or other extraneous matter which may accumulate there. Into the lower projection N N of the casing A is screwed the bushing F F, comprising the valve opening and seat 6 e, valve chamber E and coupling screw D, which latter secures the apparatus, directly to the meter.

The valve stem S secures the valve V to the center of the inverted cup G by the nut M. The guiding arm P is hinged to an axis 0, secured in holes drilled in the casing and its pointed ends 3? p pass into perforations in the upturned ends m m of the extended arms of the nut M. Upon the upper protruding end of the valve stem S is secured the seat W for the purpose of receiving additional weights, which are made in the form of rings. The lid or cover H H with an air hole m is secured to the casing A A by screws 7' j, and can be removed or replaced at pleasure without interfering with the working parts of the instrument.

The gas enters, first'from the meter, into the valve chamber E, thence through the valve opening 6 e into all the interior part of the instrument beneath the inverted cup G, making its exit from the instrument through the nozzle C.

In order to understand the operation of my improved gas regulator the inverted cup G, of comparatively large area, may be regarded as a surface, sensitive to every variation of pressure in the gas which it contains and being attached to the valve V, the latter participates in every movement which it may make by the increase or diminution of the gas pressure upon it. The cup G is loaded to a certain permanent pressure which experiment determines to be the most economical andadvantageous for consumption and which the gas in the cup must sustain in order to supply the burners with a uniform flow of gas. Should there be a greater demand for gas, by an increase in the number of lights, which would burn the gas out of the .instrument and lower the pressure, the load on the cup cannot be sustained, but tending downward and depressing the latter with the attached valve V, the opening for gas at e e is enlarged, the supply made equal to the wants of the additional burners, and the equilibrium is, in a moment again restored. On the other hand, should the street pressure increase more gas would pass through the valve aperture into the cup chamber, the immediate effect of which would be to augment the pressure there, and thus raise the cup and valve, re duce the aperture 6 e and graduate the incombined arrangement of moving parts 1s wholly unencumbered by any resistance whatever, in its vertical movements.

The receptacle 9 9 not only prevents the fluid 1' a" from falling on the valve, valve'seat or v into the meter, thereby injuring them, but

by contracting the aperture Z it also breaks or checks the direct flow of gas from the valve aperture 6 e to the under side of the cup G, thus efiectually destroying the tendency of the cup to tremble, which frequently takes place with those regulators in which the cup is wholly exposed to the influx of By making the valve seat e e and coupling D in one, the vertical distance between the coupling and the seat is greatly reduced,

and when this is taken in connection with the exit pipe on an incline, the vertical distance between the inlet coupling D and the outlet screw C is less than can be obtained by any other arrangement. This adaptation of parts secures a safe and ready attachment of the instrument, where, under the frequent occurrence of a short service pipe an instrument of greater height could not be used.

Having thus fully described the nature of my invention, I will state: I am aware that gas regulators in which an inverted cup, loaded with weights and attached to a valve are in common use; this I do not claim. But

' What I do claim and desire to secure by Letters Patent is:

1. Guiding the inverted cup G by an arm P, when the latter is loosely jointed to the piasng and to the cup in the manner speci- 2. I also claim combining the coupling screw D the valve seat 0 e chamber E and the inclined outlet B with each other for the purposes set forth.

' JOHN H. COOPER. Witnesses:

CHAS. N. TRUMP, SAMUEL .CowARD. 

